fix: 🐛 Fix RT Panel hide/show and Fix looping load errors (#1877)

* fix: 🐛 Fix RT Panel hide/show

* Prevent infinite loop by persisting load errors on displaySet.

* fix: 🐛 Fix infinite error messages

* Fix unit tests.

* comment out reamining MRSTUDY line

platform/core/src/utils/loadAndCacheDerivedDisplaySets.js

@@ -82,12 +82,17 @@ const loadAndCacheDerivedDisplaySets = (referencedDisplaySet, studies) => {
   // For each type, see if any are loaded, if not load the most recent.
   Object.keys(displaySetsPerModality).forEach(key => {
     const displaySets = displaySetsPerModality[key];
+
     const isLoaded = displaySets.some(displaySet => displaySet.isLoaded);
 
     if (isLoaded) {
       return;
     }
 
+    if (displaySets.some(displaySet => displaySet.loadError)) {
+      return;
+    }
+
     // find most recent and load it.
     let recentDateTime = 0;
     let recentDisplaySet = displaySets[0];
@@ -102,6 +107,8 @@ const loadAndCacheDerivedDisplaySets = (referencedDisplaySet, studies) => {
       }
     });
 
+    recentDisplaySet.isLoading = true;
+
     promises.push(recentDisplaySet.load(referencedDisplaySet, studies));
   });